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Practical Wastewater Pretreatment Strategies for Small Breweries

MBAA TQ vol. 39, no. 1, 2002, pp. 39-46  |  VIEW ARTICLE

Karl Ockert. BridgePort Brewing Company, Portland, OR.

Abstract
Incoming water quality is of primary importance to every brewer. However, the character of process wastewater has also become an issue attracting serious attention. In the United States, wastewater treatment to adjust pH prior to discharge is federally mandated. Extra strength sewer charges for municipal treatment to reduce biochemical oxygen demand and total suspended solids have become significant. Adaptation of production procedures and processes can help address both the pH and effluent load problems, and systems are available to provide consistent and effective results. A practical approach to pH pretreatment systems and wastewater management is given.
Keywords: biochemical oxygen demand, effluent, extra strength sewer charges, pH, total suspended solids, wastewater  

Sintesis
La calidad del agua es de m�xima importancia en la cervecer�a. Sin embargo, el car�cter del efluente del proceso tambi�n se ha vuelto un tema importante. En los Estados Unidos, el ajuste del pH del efluente antes de su descarga a los colectores es ahora una obligaci�n federal. Los cobros por el tratamiento municipal de efluentes de cargas excepcionalmente fuertes, para reducir la demanda bioqu�mica de ox�geno y los s�lidos totales suspendidos, han aumentado significativamente. Es posible adaptar los procesos y procedimientos de la producci�n para reducir los problemas de pH y de las cargas del efluente, y existen sistemas que arrojan resultados eficaces y consistentes. Se presenta un enfoque pr�ctico a sistemas de pretratamiento de pH y al manejo eficaz del tratamiento de efluentes. Palabras claves: demanda bioqu�mico de ox�geno, efluentes, pH, s�lidos totales suspendidos

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